CN114769326B - Hot-rolled roll gap contour construction method and system - Google Patents
Hot-rolled roll gap contour construction method and system Download PDFInfo
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- CN114769326B CN114769326B CN202210297945.9A CN202210297945A CN114769326B CN 114769326 B CN114769326 B CN 114769326B CN 202210297945 A CN202210297945 A CN 202210297945A CN 114769326 B CN114769326 B CN 114769326B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
- B21B38/105—Calibrating or presetting roll-gap
Abstract
The invention discloses a method and a system for constructing a hot-rolled roll gap profile, and relates to the technical field of calculation of hot-rolled roll gap profiles. According to the invention, a first roll gap starting point coordinate and a first roll gap ending point coordinate on an upper roll lower boundary curve, a second roll gap starting point coordinate and a second roll gap ending point coordinate on a lower roll upper boundary curve are determined according to the length of a working roll and the width of a rolled product, a roll gap upper contour curve is intercepted from the upper roll lower boundary curve according to the first roll gap starting point coordinate and the first roll gap ending point coordinate, a roll gap lower contour curve is intercepted from the lower roll upper boundary curve according to the second roll gap starting point coordinate and the second roll gap ending point coordinate, and the roll gap thickness contour curve is obtained by subtracting the roll gap lower contour curve from the roll gap upper contour curve, so that the roll gap contour can be effectively constructed.
Description
Technical Field
The invention relates to the technical field of hot-rolling roll gap contour calculation, in particular to a hot-rolling roll gap contour construction method and a hot-rolling roll gap contour construction system.
Background
The hot rolling roll gap profile is the roll gap thickness profile between the upper roll lower boundary and the lower roll upper boundary of the position where a rolled product is located, the hot rolling roll gap profile is an important mode for product profile control and quality evaluation, the new roll gap profile can be equivalently calculated through a basic formula equation, but the worn working roll shape is complex and cannot be accurately expressed in a plurality of modes, and the traditional equation calculation mode cannot be used for effectively expressing the roll gap profile.
Disclosure of Invention
The invention solves the technical problem of how to effectively construct the roll gap profile by providing the method and the system for constructing the hot rolling roll gap profile.
In one aspect, the present invention provides the following technical solutions:
a hot rolling roll gap profile construction method comprises the following steps:
acquiring the length of a working roll and the width of a rolled product, wherein the working roll comprises an upper roll and a lower roll;
acquiring a lower boundary curve of an upper roller; acquiring an upper boundary curve of the lower roller;
determining a first roll gap starting point coordinate and a first roll gap ending point coordinate on the lower boundary curve, and a second roll gap starting point coordinate and a second roll gap ending point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product;
intercepting a roll gap upper profile curve from the lower boundary curve according to the first roll gap starting point coordinate and the first roll gap ending point coordinate, and intercepting a roll gap lower profile curve from the upper boundary curve according to the second roll gap starting point coordinate and the second roll gap ending point coordinate;
and subtracting the roll gap lower contour curve from the roll gap upper contour curve to obtain a roll gap thickness contour curve.
Preferably, the acquiring the lower boundary curve of the upper roller includes:
acquiring an upper boundary curve of an upper roller;
and taking a curve symmetrical to the upper boundary curve of the upper roller along the transverse axis of the upper roller as the lower boundary curve of the upper roller.
Preferably, the determining the first roll gap start point coordinate and the first roll gap end point coordinate on the lower boundary curve, and the second roll gap start point coordinate and the second roll gap end point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product includes:
X1＝L/2-W/2，X2＝L/2+W/2，X3＝L/2-W/2，X4＝L/2+W/2；
x1 is the first roll gap starting point coordinate, X2 is the first roll gap ending point coordinate, X3 is the second roll gap starting point coordinate, X4 is the second roll gap ending point coordinate, L is the length of the working roll, and W is the width of the rolled product.
Preferably, the determining the first roll gap start point coordinate and the first roll gap end point coordinate on the lower boundary curve, and the second roll gap start point coordinate and the second roll gap end point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product includes:
acquiring the roll shifting amount of the working roll;
and determining the first roll gap starting point coordinate, the first roll gap ending point coordinate, the second roll gap starting point coordinate and the second roll gap ending point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product.
Preferably, the determining the first roll gap start point coordinate, the first roll gap end point coordinate, the second roll gap start point coordinate and the second roll gap end point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product includes:
X1＝L/2-K-W/2，X2＝L/2-K+W/2，X3＝L/2+K-W/2，X4＝L/2+K+W/2；
x1 is the first roll gap starting point coordinate, X2 is the first roll gap ending point coordinate, X3 is the second roll gap starting point coordinate, X4 is the second roll gap ending point coordinate, L is the length of the working roll, W is the width of the rolled product, K is the roll shifting amount, K is positive when the roll is shifted positively, and K is negative when the roll is shifted negatively.
On the other hand, the invention also provides the following technical scheme:
a hot rolled roll gap profile construction system comprising:
the data acquisition module is used for acquiring the length of a working roll and the width of a rolled product, and the working roll comprises an upper roll and a lower roll;
the data acquisition module is also used for acquiring a lower boundary curve of the upper roller and an upper boundary curve of the lower roller;
the roll gap coordinate determining module is used for determining a first roll gap starting point coordinate and a first roll gap ending point coordinate on the lower boundary curve, and a second roll gap starting point coordinate and a second roll gap ending point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product;
the roll gap profile intercepting module is used for intercepting a roll gap upper profile curve from the lower boundary curve according to the first roll gap starting point coordinate and the first roll gap ending point coordinate, and intercepting a roll gap lower profile curve from the upper boundary curve according to the second roll gap starting point coordinate and the second roll gap ending point coordinate;
and the roll gap profile calculation module is used for subtracting the roll gap lower profile curve from the roll gap upper profile curve to obtain a roll gap thickness profile curve.
Preferably, the data acquisition module is further configured to:
acquiring an upper boundary curve of an upper roller;
and taking a curve symmetrical to the upper boundary curve of the upper roller along the transverse axis of the upper roller as the lower boundary curve of the upper roller.
Preferably, the roll gap coordinate determining module is further configured to:
acquiring the roll shifting amount of the working roll;
and determining the first roll gap starting point coordinate, the first roll gap ending point coordinate, the second roll gap starting point coordinate and the second roll gap ending point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product.
On the other hand, the invention also provides the following technical scheme:
an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing any one of the hot rolling gap profile construction methods described above when executing the program.
On the other hand, the invention also provides the following technical scheme:
a computer readable storage medium that when executed implements any of the hot rolling gap profile construction methods described above.
The one or more technical schemes provided by the invention have at least the following technical effects or advantages:
and according to the length of the working roll and the width of the rolled product, determining a first roll gap starting point coordinate and a first roll gap ending point coordinate on an upper-lower boundary curve of the working roll, a second roll gap starting point coordinate and a second roll gap ending point coordinate on an upper-boundary curve of the lower roll, intercepting a roll gap upper contour curve from the upper-lower boundary curve according to the first roll gap starting point coordinate and the first roll gap ending point coordinate, intercepting a roll gap lower contour curve from the lower-upper boundary curve according to the second roll gap starting point coordinate and the second roll gap ending point coordinate, subtracting the roll gap lower contour curve from the roll gap upper contour curve to obtain a roll gap thickness contour curve, and effectively constructing a roll gap contour.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a hot roll seam profile construction method in an embodiment of the present invention;
FIG. 2 is a schematic view of the construction of a work roll and a rolled product in an embodiment of the invention;
FIG. 3 is a schematic view of the construction of a dancer roll and a rolled product according to an embodiment of the present invention;
FIG. 4 is a schematic view of a roll gap shape profile in an embodiment of the present invention;
FIG. 5 is a schematic view of a roll gap thickness profile in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram of a hot roll seam profile construction system in accordance with an embodiment of the present invention.
Detailed Description
The embodiment of the invention solves the technical problem of how to effectively construct the roll gap profile by providing the method and the system for constructing the hot rolling roll gap profile.
In order to better understand the technical scheme of the present invention, the following detailed description will refer to the accompanying drawings and specific embodiments.
First, the term "and/or" appearing herein is merely an association relationship describing associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
As shown in fig. 1, the hot rolling roll gap profile construction method of the present embodiment includes:
step S1, acquiring the length of a working roll and the width of a rolled product, wherein the working roll comprises an upper roll and a lower roll;
s2, acquiring a lower boundary curve of an upper roller; acquiring an upper boundary curve of the lower roller;
step S3, determining a first roll gap starting point coordinate and a first roll gap end point coordinate on the upper-lower boundary curve of the upper roll, and a second roll gap starting point coordinate and a second roll gap end point coordinate on the upper boundary curve of the lower roll according to the length of the working roll and the width of the rolled product;
s4, cutting out a roll gap upper profile curve from an upper roll lower boundary curve according to a first roll gap starting point coordinate and a first roll gap ending point coordinate, and cutting out a roll gap lower profile curve from a lower roll upper boundary curve according to a second roll gap starting point coordinate and a second roll gap ending point coordinate;
and S5, subtracting the roller gap lower contour curve from the roller gap upper contour curve to obtain a roller gap thickness contour curve.
In step S1, as shown in fig. 2, the upper roll and the lower roll have the same length, and in general, the center lines of the upper roll, the lower roll, and the rolled product overlap with the rolling center line.
In step S2, the lower boundary curve of the upper roller may be directly measured, but considering that the upper boundary curve of the upper roller and the upper boundary curve of the lower roller are generally directly measured by the measuring system, and the upper boundary curve of the upper roller and the lower boundary curve are symmetrical about the horizontal axis (OS-DS line in fig. 2) of the upper roller, the lower boundary curve of the upper roller may be obtained by measuring the upper boundary curve of the upper roller, that is, step S2 includes: acquiring an upper boundary curve of an upper roller; and taking a curve symmetrical to the upper boundary curve of the upper roller along the transverse axis of the upper roller as the lower boundary curve of the upper roller. This eliminates the need to additionally measure the lower boundary curve of the upper roll.
In step S3, for the working rolls without play, since the center lines of the upper roll, the lower roll, and the rolled product coincide with the rolling center line, the first roll gap start point coordinate, the first roll gap end point coordinate, the second roll gap start point coordinate, and the second roll gap end point coordinate can be determined by the formulas x1=l/2-W/2, x2=l/2+W/2, x3=l/2-W/2, and x4=l/2+W/2, where X1 is the first roll gap start point coordinate, X2 is the first roll gap end point coordinate, X3 is the second roll gap start point coordinate, X4 is the second roll gap end point coordinate, L is the length of the working roll, and W is the width of the rolled product, as shown in fig. 2. The first roll gap starting point coordinate and the coordinate zero point corresponding to the first roll gap ending point coordinate are OS sides of the upper-roll lower boundary curve, and the second roll gap starting point coordinate and the coordinate zero point corresponding to the second roll gap ending point coordinate are OS sides of the lower-roll upper boundary curve. For some working rolls with play, the roll shifting amount of the working rolls is required to be obtained, a first roll gap starting point coordinate, a first roll gap end point coordinate, a second roll gap starting point coordinate and a second roll gap end point coordinate are determined according to the roll shifting amount, the length of the working rolls and the width of a rolled product, and the roll shifting amount is calculated by the formulas of X1 = L/2-K-W/2, X2 = L/2-K + W/2, X3 = L/2+K-W/2 and X4 = L/2+ K + W/2, K is the roll shifting amount, and K is positive when the roll shifting is positive and negative when the roll shifting is positive. Thus, the roll gap starting point coordinate and the roll gap ending point coordinate of the shifting working roll can be obtained. As shown in fig. 3, the symmetric movement of the upper roller toward the transmission side (right side in fig. 3) and the symmetric movement of the lower roller toward the operation side (left side in fig. 3) are defined as positive movement rollers, and the symmetric movement of the upper roller toward the operation side and the symmetric movement of the lower roller toward the transmission side are defined as negative movement rollers.
In step S4, the upper contour curve of the roll gap cut from the upper boundary curve of the upper roll according to the first roll gap start point coordinate and the first roll gap end point coordinate is the curve of X1 to X2 in fig. 2, and the lower contour curve of the roll gap cut from the upper boundary curve of the lower roll according to the second roll gap start point coordinate and the second roll gap end point coordinate is the curve of X3 to X4 in fig. 2. In this example, w= 1273.7mm and k=120 mm are taken as examples, and a roll gap shape profile curve as shown in fig. 4 can be obtained.
In step S5, the roll gap thickness profile shown in fig. 5 can be obtained from fig. 4. When the thickness of the roll gap is actually calculated, a plurality of points on the upper contour curve of the roll gap and the lower contour curve of the roll gap are selected, and if the number of points is N and the abscissa interval between adjacent points is M, K=M (N-1).
As can be seen from the foregoing, in this embodiment, the first roll gap start point coordinate and the first roll gap end point coordinate on the upper roll lower boundary curve, the second roll gap start point coordinate and the second roll gap end point coordinate on the lower roll upper boundary curve are determined according to the length of the working roll and the width of the rolled product, the roll gap upper contour curve is cut from the upper roll lower boundary curve according to the first roll gap start point coordinate and the first roll gap end point coordinate, the roll gap lower contour curve is cut from the lower roll upper boundary curve according to the second roll gap start point coordinate and the second roll gap end point coordinate, and the roll gap thickness contour curve is obtained by subtracting the roll gap lower contour curve from the roll gap upper contour curve, so that the roll gap contour can be effectively constructed.
As shown in fig. 6, this embodiment further provides a hot rolling gap profile construction system, including:
the data acquisition module is used for acquiring the length of the working roll and the width of a rolled product, and the working roll comprises an upper roll and a lower roll;
the data acquisition module is also used for acquiring a lower boundary curve of the upper roller and an upper boundary curve of the lower roller;
the roll gap coordinate determining module is used for determining a first roll gap starting point coordinate and a first roll gap end point coordinate on the upper roll lower boundary curve, and a second roll gap starting point coordinate and a second roll gap end point coordinate on the lower roll upper boundary curve according to the length of the working roll and the width of the rolled product;
the roll gap profile intercepting module is used for intercepting a roll gap upper profile curve from an upper roll lower boundary curve according to a first roll gap starting point coordinate and a first roll gap ending point coordinate, and intercepting a roll gap lower profile curve from a lower roll upper boundary curve according to a second roll gap starting point coordinate and a second roll gap ending point coordinate;
the roll gap profile calculation module is used for subtracting the roll gap lower profile curve from the roll gap upper profile curve to obtain a roll gap thickness profile curve.
The data acquisition module is further used for: acquiring an upper boundary curve of an upper roller; and taking a curve symmetrical to the upper boundary curve of the upper roller along the transverse axis of the upper roller as the lower boundary curve of the upper roller. The roll gap coordinate determining module is also used for: acquiring the roll shifting amount of a working roll; and determining a first roll gap starting point coordinate, a first roll gap ending point coordinate, a second roll gap starting point coordinate and a second roll gap ending point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product.
According to the embodiment, a first roll gap starting point coordinate and a first roll gap ending point coordinate on an upper roll lower boundary curve, a second roll gap starting point coordinate and a second roll gap ending point coordinate on a lower roll upper boundary curve are determined according to the length of a working roll and the width of a rolled product, a roll gap upper contour curve is intercepted from the upper roll lower boundary curve according to the first roll gap starting point coordinate and the first roll gap ending point coordinate, a roll gap lower contour curve is intercepted from the lower roll upper boundary curve according to the second roll gap starting point coordinate and the second roll gap ending point coordinate, and the roll gap thickness contour curve is obtained by subtracting the roll gap lower contour curve from the roll gap upper contour curve, so that a roll gap contour can be effectively constructed.
Based on the same inventive concept as the hot-rolled roll gap profile construction method described above, the present embodiment also provides an electronic device including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of any one of the hot-rolled roll gap profile construction methods described above when executing the program.
Where a bus architecture (represented by a bus), a bus may comprise any number of interconnected buses and bridges, linking together various circuits, including one or more processors, as represented by a processor, and a memory, as represented by a memory. The bus may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface between the bus and the receiver and transmitter. The receiver and the transmitter may be the same element, i.e. a transceiver, providing a unit for communicating with various other apparatus over a transmission medium. The processor is responsible for managing the bus and general processing, while the memory may be used to store data used by the processor in performing operations.
Since the electronic device described in this embodiment is an electronic device for implementing the hot roll seam contour construction method in this embodiment, based on the hot roll seam contour construction method described in this embodiment, those skilled in the art will be able to understand the specific implementation of the electronic device in this embodiment and various modifications thereof, so how this electronic device implements the method in this embodiment will not be described in detail herein. As long as the electronic equipment adopted by the person skilled in the art to implement the hot roll seam contour construction method in the embodiment of the invention is included in the scope of protection of the invention.
Based on the same inventive concept as the hot rolling roll gap profile construction method, the invention also provides a computer readable storage medium which realizes any one of the hot rolling roll gap profile construction methods when being executed.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. The hot-rolled roll gap profile construction method is characterized by comprising the following steps of:
acquiring the length of a working roll and the width of a rolled product, wherein the working roll comprises an upper roll and a lower roll;
acquiring a lower boundary curve of an upper roller; acquiring an upper boundary curve of the lower roller;
determining a first roll gap starting point coordinate and a first roll gap ending point coordinate on the lower boundary curve, and a second roll gap starting point coordinate and a second roll gap ending point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product;
the determining the first roll gap starting point coordinate and the first roll gap ending point coordinate on the lower boundary curve, and the second roll gap starting point coordinate and the second roll gap ending point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product comprises the following steps: acquiring the roll shifting amount of the working roll; determining the first roll gap starting point coordinate, the first roll gap ending point coordinate, the second roll gap starting point coordinate and the second roll gap ending point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product;
the step of determining the first roll gap starting point coordinate, the first roll gap ending point coordinate, the second roll gap starting point coordinate and the second roll gap ending point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product comprises the following steps: x1=l/2-K-W/2, x2=l/2-k+w/2, x3=l/2+K-W/2, x4=l/2+k+w/2; x1 is the first roll gap starting point coordinate, X2 is the first roll gap ending point coordinate, X3 is the second roll gap starting point coordinate, X4 is the second roll gap ending point coordinate, L is the length of the working roll, W is the width of the rolled product, K is the roll shifting amount, K is positive when the roll is shifted positively, and K is negative when the roll is shifted negatively;
intercepting a roll gap upper profile curve from the lower boundary curve according to the first roll gap starting point coordinate and the first roll gap ending point coordinate, and intercepting a roll gap lower profile curve from the upper boundary curve according to the second roll gap starting point coordinate and the second roll gap ending point coordinate;
and subtracting the roll gap lower contour curve from the roll gap upper contour curve to obtain a roll gap thickness contour curve.
2. The method of constructing a hot rolled roll gap profile as claimed in claim 1, wherein the obtaining a lower boundary curve of the upper roll comprises:
acquiring an upper boundary curve of an upper roller;
and taking a curve symmetrical to the upper boundary curve of the upper roller along the transverse axis of the upper roller as the lower boundary curve of the upper roller.
3. A hot rolled roll gap profile construction system, comprising:
the data acquisition module is used for acquiring the length of a working roll and the width of a rolled product, and the working roll comprises an upper roll and a lower roll;
the data acquisition module is also used for acquiring a lower boundary curve of the upper roller and an upper boundary curve of the lower roller;
the roll gap coordinate determining module is used for determining a first roll gap starting point coordinate and a first roll gap ending point coordinate on the lower boundary curve, and a second roll gap starting point coordinate and a second roll gap ending point coordinate on the upper boundary curve according to the length of the working roll and the width of the rolled product;
the roll gap profile intercepting module is used for intercepting a roll gap upper profile curve from the lower boundary curve according to the first roll gap starting point coordinate and the first roll gap ending point coordinate, and intercepting a roll gap lower profile curve from the upper boundary curve according to the second roll gap starting point coordinate and the second roll gap ending point coordinate;
the roll gap coordinate determining module is further used for: acquiring the roll shifting amount of the working roll; determining the first roll gap starting point coordinate, the first roll gap ending point coordinate, the second roll gap starting point coordinate and the second roll gap ending point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product;
the roll gap coordinate determining module determines the first roll gap starting point coordinate, the first roll gap ending point coordinate, the second roll gap starting point coordinate and the second roll gap ending point coordinate according to the roll shifting amount, the length of the working roll and the width of the rolled product, and the roll gap coordinate determining module comprises: x1=l/2-K-W/2, x2=l/2-k+w/2, x3=l/2+K-W/2, x4=l/2+k+w/2; x1 is the first roll gap starting point coordinate, X2 is the first roll gap ending point coordinate, X3 is the second roll gap starting point coordinate, X4 is the second roll gap ending point coordinate, L is the length of the working roll, W is the width of the rolled product, K is the roll shifting amount, K is positive when the roll is shifted positively, and K is negative when the roll is shifted negatively;
and the roll gap profile calculation module is used for subtracting the roll gap lower profile curve from the roll gap upper profile curve to obtain a roll gap thickness profile curve.
4. The hot roll gap profile construction system as claimed in claim 3, wherein the data acquisition module is further configured to:
acquiring an upper boundary curve of an upper roller;
and taking a curve symmetrical to the upper boundary curve of the upper roller along the transverse axis of the upper roller as the lower boundary curve of the upper roller.
5. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the hot rolled roll gap profile construction method of any one of claims 1-2 when the program is executed.
6. A computer readable storage medium, wherein the computer readable storage medium when executed implements the hot rolling gap profile construction method of any one of claims 1-2.
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| JPH05104112A (en) * | 1991-10-16 | 1993-04-27 | Kobe Steel Ltd | Shape of rolling roll |
| DE102004020132A1 (en) * | 2003-12-23 | 2005-07-28 | Sms Demag Ag | Method for rolling of sheets or strips in a roll stand including working rolls,intermediate rolls, and backing rolls useful for rolling sheets or strips in roll stands using working rolls supported on backing or intermediate rolls |
| CN103203370A (en) * | 2012-01-12 | 2013-07-17 | 宝山钢铁股份有限公司 | Edge wave control method aiming at high-strength steel and work rollers thereof |
| CN108114993B (en) * | 2017-12-22 | 2019-10-01 | 燕山大学 | The method that measurement support roller outer profile obtains strip-mill strip loading roll gap information in real time |
| CN110991078B (en) * | 2019-12-17 | 2022-08-05 | 中冶南方工程技术有限公司 | Working roll shape design method capable of reducing axial force |
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